Kim Kardashian, Kourtney Kardashian, Kylie Jenner, Kendall Jenner and Kris Jenner certainly know how to throw a party!

On Friday night all of the Kardashian-Jenner ladies (minus Khloe, who is staying by Lamar Odom's side while the NBA star remains in the hospital) celebrated bestie Olivier Rousteing's birthday in Los Angeles. From the fancy outfits to the A-listers on the guest list, it was quite the soiree! Kim and Kylie snapped selfies with Rousteing, who is the creative director for Balmain, and there were plenty of group photos as well. Tyga joined his lady love Kylie, but noticeably absent was Kanye West.

Jada Smith was accompanied by her kids, Willow and Jaden, who spent quite a bit of time with the Kardashians at the event. And there were plenty of other famous faces, including Cara Delevingne and Mary J. Blige: